Finding the Fourth Proportional to 1,915.60, 2,868.52 and 1,048.92

Step by Step Solution

1. Step 1: Write the proportion equation
   1,915.60 : 2,868.52 = 1,048.92 : x
2. Step 2: Convert to fraction form
   1,915.60/2,868.52 = 1,048.92/x
3. Step 3: Cross multiply
   1,915.60x = 2,868.52 × 1,048.92
4. Step 4: Simplify right side
   1,915.60x = 3,008,848.00
5. Step 5: Solve for x
   x = 3,008,848.00/1,915.60
6. Step 6: Final answer
   x = 1,570.71